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marusya05 [52]
3 years ago
14

Plzzzzzz help for a brianly

Mathematics
2 answers:
Ede4ka [16]3 years ago
7 0

Answer:

It is A

Step-by-step explanation:

Naya [18.7K]3 years ago
5 0
I think it’s either c or b it’s pretty hard
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Two trains start from Fort Worth traveling at the same speed. The trip for Train W takes 20 hours, while the trip for Train Z ta
MrMuchimi

Answer:

The equation that best models this situation is :

b. \frac{x}{20}=\frac{x+400}{25}

Distance traveled by Train W = 1600 miles

Distance traveled by Train Z = 2,000 miles

Step-by-step explanation:

Given:

Time taken for Train W to complete a trip = 20 hours

Time taken for Train Z to complete a trip = 25 hours

The city Train Z is traveling to is 400 miles farther away than the city Train W is traveling to.

both trains have same speeds and start from same location.

To find the distance in total each train travels.

Solution:

<em>Let length of the trip of Train W be </em>= x miles

Speed of Train W can be given as :

⇒ \frac{Distance}{Time}

⇒ \frac{x}{20}\ miles/h

<em>So, the length of the trip of Train Z will be</em> = (x+400) miles

Speed of Train Z can be given as :

⇒ \frac{Distance}{Time}

⇒ \frac{x+400}{25}\ miles/h

Since the speeds are same, so the equation to find x can be given as:

⇒ \frac{x}{20}=\frac{x+400}{25}

Solving for x

Multiplying both sides by 100 to remove fractions.

⇒ 100\times \frac{x}{20}=100\times \frac{x+400}{25}

⇒ 5x=4(x+400)

Using distribution.

⇒ 5x=4x+1600

Subtracting both sides by 4x

⇒ 5x-4x=4x-4x+1600

⇒ x=1600

Thus, Distance traveled by Train W = 1600 miles

Distance traveled by Train Z = 1600+400 = 2,000 miles

3 0
3 years ago
If f(x) = 27 +3 and g(x) = x - 7, find (f - g)(x).
KatRina [158]

Answer:

(f - g)(x) = 37 - x

Step-by-step explanation:

(f - g)(x) = (27 +3) - (x - 7)

            = 27 + 3 - x + 7

            = 37 - x

3 0
2 years ago
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The length of FH is 9 cm. What is the length of GK? SHOW STEPS AWARDING BRAINLY
DanielleElmas [232]

Answer:

GK = 9cm

Step-by-step explanation:

Length of diagonal FH = 9 cm

By the property of a rectangle,

"Lengths of the diagonals of a rectangle measure the same"

FH = GK

Therefore, GK = FH = 9cm

7 0
3 years ago
How do you write a number that has four digits with the same number in all the places
Maksim231197 [3]
Pick any digit except zero. Write it four times on the same line. If you want to, put a comma between the first and the second one. Shazam ! There's your number !
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3 years ago
Jay needs at least 5,000 points to be nominated for MVP she currently has 3800. Write an inequality to find P the total amount o
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Answer:

1200

Step-by-step explanation

3800+p=5000

5000-3800=1200

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3 years ago
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